Yes; Yahweh is Lord and GOD of the Hebrews/Jews and new born christians. Though the sect of the "Jehovah witnesses" have him as well as the only god; but it is way different than the one in the Holy Bible, they too have the "bible" they just love to misread it and extortion the true meaning of it.
No. The Hebrews worship only God. It is forbidden for the Hebrews to worship men or engage in Human sacrifice.
It was different from the religions around it, because the Hebrews believed in one God above all others.
Many People belived that Hebrews were the first to practice monothiesm, a religion where there is the belife of one god and only one god.
The Egyptians did not have a symbol for the Hebrew God. They only wrote about the Hebrews in one place, and didn't mention their God.
Jewish traditional holds that the concept of God includes the idea that God protects everyone, not just the Hebrews.
Because the Hebrew alphabet only has consonants.
The God of the ancient Hebrew was the only one they worshipped, whereas the pagans worshipped multiple gods. This God of the Hebrews also did not have a physical image.
Yahweh
Jewish tradition holds that part of the belief in God includes the idea that God protects everyone, not just the Hebrews.
If you are asking if the Hebrews were the first people to believe in the existence of one God, the answer is no.
It was and still is revolutionary. It marked the only time in history that God spoke to an entire assembled nation.
By trusting in God even after the death of her husband, Naomi helped the Hebrews believe more in God.